Resolved: Changing image tag in OpenShift Deployment with CLI

Question:

is there a set of commands to change the docker image name/tag in an existing deployment in a project in an OpenShift cluster?

Answer:

You can use the oc set image command to change the image for a container in an existing Deployment / DeploymentConfig:
oc set image dc/myapp mycontainer=nginx:1.9.1
Try oc set image --help for some examples.

If you have better answer, please add a comment about this, thank you!